From: Marek Olšák <marek.olsak@amd.com>
Date: Thu, 16 Aug 2018 01:29:31 +0000 (-0400)
Subject: radeonsi: extract COMPUTE_RESOURCE_LIMITS code into a helper
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=c44c6951d46a8e19c8764711d4c3d7a331822c9f;p=mesa.git

radeonsi: extract COMPUTE_RESOURCE_LIMITS code into a helper

Tested-by: Dieter Nützel <Dieter@nuetzel-hh.de>
Acked-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
---

diff --git a/src/gallium/drivers/radeonsi/si_compute.c b/src/gallium/drivers/radeonsi/si_compute.c
index 46a0ba76ed5..cf9c0601fc9 100644
--- a/src/gallium/drivers/radeonsi/si_compute.c
+++ b/src/gallium/drivers/radeonsi/si_compute.c
@@ -753,18 +753,14 @@ static void si_setup_tgsi_user_data(struct si_context *sctx,
 	}
 }
 
-static void si_emit_dispatch_packets(struct si_context *sctx,
-                                     const struct pipe_grid_info *info)
+unsigned si_get_compute_resource_limits(struct si_screen *sscreen,
+					unsigned waves_per_threadgroup,
+					unsigned max_waves_per_sh)
 {
-	struct si_screen *sscreen = sctx->screen;
-	struct radeon_cmdbuf *cs = sctx->gfx_cs;
-	bool render_cond_bit = sctx->render_cond && !sctx->render_cond_force_off;
-	unsigned waves_per_threadgroup =
-		DIV_ROUND_UP(info->block[0] * info->block[1] * info->block[2], 64);
 	unsigned compute_resource_limits =
 		S_00B854_SIMD_DEST_CNTL(waves_per_threadgroup % 4 == 0);
 
-	if (sctx->chip_class >= GFX7) {
+	if (sscreen->info.chip_class >= GFX7) {
 		unsigned num_cu_per_se = sscreen->info.num_good_compute_units /
 					 sscreen->info.max_se;
 
@@ -775,17 +771,29 @@ static void si_emit_dispatch_packets(struct si_context *sctx,
 		if (num_cu_per_se % 4 && waves_per_threadgroup == 1)
 			compute_resource_limits |= S_00B854_FORCE_SIMD_DIST(1);
 
-		compute_resource_limits |= S_00B854_WAVES_PER_SH(sctx->cs_max_waves_per_sh);
+		compute_resource_limits |= S_00B854_WAVES_PER_SH(max_waves_per_sh);
 	} else {
 		/* GFX6 */
-		if (sctx->cs_max_waves_per_sh) {
-			unsigned limit_div16 = DIV_ROUND_UP(sctx->cs_max_waves_per_sh, 16);
+		if (max_waves_per_sh) {
+			unsigned limit_div16 = DIV_ROUND_UP(max_waves_per_sh, 16);
 			compute_resource_limits |= S_00B854_WAVES_PER_SH_SI(limit_div16);
 		}
 	}
+	return compute_resource_limits;
+}
+
+static void si_emit_dispatch_packets(struct si_context *sctx,
+                                     const struct pipe_grid_info *info)
+{
+	struct si_screen *sscreen = sctx->screen;
+	struct radeon_cmdbuf *cs = sctx->gfx_cs;
+	bool render_cond_bit = sctx->render_cond && !sctx->render_cond_force_off;
+	unsigned waves_per_threadgroup =
+		DIV_ROUND_UP(info->block[0] * info->block[1] * info->block[2], 64);
 
 	radeon_set_sh_reg(cs, R_00B854_COMPUTE_RESOURCE_LIMITS,
-			  compute_resource_limits);
+			  si_get_compute_resource_limits(sscreen, waves_per_threadgroup,
+							 sctx->cs_max_waves_per_sh));
 
 	unsigned dispatch_initiator =
 		S_00B800_COMPUTE_SHADER_EN(1) |
diff --git a/src/gallium/drivers/radeonsi/si_pipe.h b/src/gallium/drivers/radeonsi/si_pipe.h
index 1c98f41b5f3..be7ca4d5f5c 100644
--- a/src/gallium/drivers/radeonsi/si_pipe.h
+++ b/src/gallium/drivers/radeonsi/si_pipe.h
@@ -1304,6 +1304,9 @@ unsigned si_end_counter(struct si_screen *sscreen, unsigned type,
 			uint64_t begin);
 
 /* si_compute.c */
+unsigned si_get_compute_resource_limits(struct si_screen *sscreen,
+					unsigned waves_per_threadgroup,
+					unsigned max_waves_per_sh);
 void si_init_compute_functions(struct si_context *sctx);
 
 /* si_perfcounters.c */